Here's something else from Pierre Manent in a little book of his originally published as Situation de la France and translated as Beyond Radical Secularism (p.55):

In the present configuration of things, the demand for freedom of opinion and expression without restriction, as essential as it may be, as I have repeated, is not sufficient to prepare us adequately for the challenges that await us. This demand, as I have explained, is not even sufficient to produce a sufficiently enlightened freedom. The abstract principles of modern politics may be products of long experience, but they are not by themselves capable of producing the community of life and experience that they help so usefully to organize. Their abstraction, as I emphasized in discussing secularism, tends to distance us considerably from the experience that they are supposed to distill, to make us forget the meaning of this experience, and to give the illusion that we have only to apply them in order to live together freely and happily.